Frame for articulated oil-electric locomotives



April 1 1932- c c c. BURKHARDT FRAME FOR ARTICULATED OIL ELECTRICLOCOMOTIVES Filed Aug. 30, 1930 4 Sheets-Sheet April 19, 1932. c. c. c.BURKHAR DT .FRAME F'OR ARTICULATED OIL ELECTRIC LOCOMOTIVES Filed Aug.30, 1930 4 Sheets-sheet rlllllllll April 19; 1932. c. c. c BURKHARDT1,355,094

FRAME FOR ARTICULATED OIL ELECTRIC LOCOMOTIVES Filed Aug. 30, 1930 4Sheets-Sheet 3 $47 Maw A ril 19, 1932 c C BURKHARDT 1,855,094

FRAME FOR ARTICULA'TED on, ELECTRIC LOCOMOTIVES Filed Aug. 30. 1930 4Sheets-Sheet III/llllflflllllIlI d I I a Patented Apr. 19, 1932 UNITEDSTATES PATENT OFFICE CONRAD C. G. IBURKHARDT, OF IPIIILADELPHIA,PENNSYLVANIA FRAME FOR ARTICULATED OIL-ELECTRIC LOCOMOTIVES Applicationfiled August 30, 1930. Serial No. 473,966.

A further object of the invention is to make each frame in a singlecasting, in which the inner bumpers are extended and in contact one withthe other, so as to 'relieve the center bearings of the frame fromstrain.

A still further object of the invention is to so design the one-pieceframe that a brake cylinder may be cast integral therewith.

Another object of the invention is to so design certain elements, whichheretofore have been made separate, that they are cast integral with theframe.

In the accompanying drawings:

Fig. 1 is a diagrammatic side view of an articulated oil-electriclocomotive made in accordance with my invention;

Fig. 2 is a plan View of the improved integral frame of the locomotive;

Fig. 3 is a side view;

Fig. 4 is a sectional view on the line 44, Fig. 3;

Fig. 5 is a sectional view on the line 55, 5 Fig. 3;

Fig. 6 is a modification showing the de pressed inner bumper;

Fig. 7 is a view showing the application of twin springs to the frame;

Fig. 8 is a view showing the application of a single spring mounted onthe boxes and located on the inside of a box-type frame; and

Figs. 9 and 10 are views of modifications of the invention.

The body 1 of the locomotive is mounted on two frames 2- 2, each framebeing in the form of a truck, and the body of the locomotive rests onthe center bearings 3 of the frames 2. Each frame has an outer bumper 4at one end, having pockets 5 for the draftgear and attachments. Formedin the bumper are pollingpockets 6, and directly back of the bumper isthe fulcrum 25 for the cross-.

equalizing beam. Sand-boxes 7 are cast in- 'tegral with the frame,directly back of the head 9, and in back of the bumper'8'are sandboxes10 cast integral with the frame. The

outer bumper. At the opposite end of the frame is the inner bumper 8,having adrawface of each draw-head 9'is curved as at 11,

and the draw-head of one frame abuts that of the adjoining frame, andthe two frames are connected by a link 12' shown by dotted lines.

13 is a cross-tie forming an integral part of the frame, and thiscross-tie has a centerbearing 14, on which rests the body of thelocomotive. Formed integral with the. crosstie are the fulcrumbrackets15 for the brake mechanism and the suspension lugs 16 for A the electricmotors. Projecting upwardly' from the frame are the side-bearings 17-.The brake-cylinders 22 in the present instance are bolted on the frame,being partially enclosed within a pocket 18.

Theside-frames-l-Q-IQ, which connect the i outer bumper, cross-tie andinner bumper,

are provided with pedestals 20, and. on the frame are located points ofattachment for the driving spring links- The springs .a'a shown in Fig.7 are twin springs, one'being on the outside of the, frame and the otherbeing on the inside of the frame. These springs are similar to thoseshown in the patent granted to John S. Keen, No. 1,530,373, v

datedMarch 17, 1925. In Fig. 8 the frame is made to accommodate singledriving springs 6, each spring being encased in a hollow frame andresting upon the boxes between the pedestal s.

In Fig. 1 is shown the electric cells 21 suspended from the underside ofthe body of the locomotive at the center thereof, and in this instance.theinner end ofieachframe is depressed as shown in Figs. 1 and 6, so asto clear these cells. The storage batteries are used to. energize thegeneratorg'which is used as 'a'motor to start the oil' engine on thelocomotive, and the storage battery isused also for lighting and forcontrol circuits.

Figs. 9 and 10 illustrate a modification in v a frame.

which the brake cylinders 22a are cast integral with the frame. Withinthe cylinders are bushings 23. In this instance the brake dead leverfulcrum 24 is an integral part of the cylinder head.

I claim: s

1. The combination in an oil-electric articulated flocomotive, of a bodyportion; two frames on which the body portion is pivotal lymounted, eachframe being made as an integral casting, one frame being coupled to theother and each frame having an outer and an inner draw-head, the innerdraw-head and a portion of the frame being depressed; and

storage batteries suspended from'the body of the locomotive andoccupying the space directly above the depressed portions of the 2. Thecombination in an oil-electric articulated locomotive, oftwo framesconnected together; axle box pedestals on the frames,

' each frame having a centrally located center bearing cross-tie; a bodyportion mounted above the two frames and havingtwo center bearingsmo-untedon the center bearings of c I the cross-ties of the frames, eachframe having a bumper at each end, the outer bumpers extending beyondthe body of the locomotive, the inner bumpers being in contact with eachother, soas to have a rubbing action; and

means connecting the inner endsof the two frames.

3. The combination in an oil-electric articulated locomotive, of twoframes coupled together; a body portion having a center bearing mountedon each frame, each frame being .made as an integral casting and havinga bumper at each end; a center bearing crosstie; and sand boxes at thefour corners of the frame at theijunction of the side members withthebumpers. 1

gether, each frame having acenter bearing cross-tie; a body portlonmounted above the 7 two frames and having center bearings 5. A'frame foran oil-electric locomotive mounted on the center bearings of thecrossties of the frames, each frame being made as y i an integralstructure and having a bumper at each end, the inner bumpers beingcurved so the bumper of one frame will rub against the bumper of theother frame, each frame having'i'nte gral side bearings, brake cylindersupports, and havmg at one end a fulcrum for a cross-equal1z1ng beam.

made in a singlecasting and consisting of longitudinal sideframes; anouter bumper and an inner bumper; a center bearing crosstie on which thebody of the locomotive is pivotally mounted; and a. fulcrum for acrossequalizing beam locateddirectlyback of the outer bumper.

ooivnn no'. CLBURKHARDT; (r

r V 4. The combination'in an oil-electric articulated'locomotive, of twoframes coupled to-

